Projection-based atom selection in orthogonal matching pursuit for compressive sensing

Chatterjee, Saikat and Hari, KVS and Handel, Peter and Skoglund, Mikael (2012) Projection-based atom selection in orthogonal matching pursuit for compressive sensing. In: 2012 National Conference on Communications (NCC), 3-5 Feb. 2012, Kharagpur.

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Abstract

For compressive sensing, we endeavor to improve the atom selection strategy of the existing orthogonal matching pursuit (OMP) algorithm. To achieve a better estimate of the underlying support set progressively through iterations, we use a least squares solution based atom selection method. From a set of promising atoms, the choice of an atom is performed through a new method that uses orthogonal projection along-with a standard matched filter. Through experimental evaluations, the effect of projection based atom selection strategy is shown to provide a significant improvement for the support set recovery performance, in turn, the compressive sensing recovery.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	19 Dec 2013 11:07
Last Modified:	19 Dec 2013 11:07
URI:	http://eprints.iisc.ac.in/id/eprint/48036

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